MacNeill, I. B., & Umphrey, G. J. (1987). Actuarial science. D. Reidel ;, Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)MacNeill, Ian B., και Gary J. Umphrey. Actuarial Science. Dordrecht ; Boston : Norwell, MA, U.S.A.: D. Reidel ;, Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publishers, 1987.
Παραπομπή σε μορφή MLA (9th εκδ.)MacNeill, Ian B., και Gary J. Umphrey. Actuarial Science. D. Reidel ;, Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publishers, 1987.
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